Originally Posted by delphidb96
seem to prefer a button which registers a depression whenever a butterfly in China flaps its wings.
So far I haven't encountered any real problems with the button on my Cybook. Sometimes I need to press twice to make the page turn, but that's okay. After having used it for a while now, I also don't think I will get a sore thumb -- after all, when you're reading you only have to press that button every 1-2 minutes or so.